symlink $WORK/tmp/symdir1 -> $WORK/tmp/gopath/src/dir1
env GOPATH=$WORK/tmp/gopath
cd $WORK/tmp/symdir1

go list -f '{{.Root}}' .
stdout '^'$WORK/tmp/gopath'$'

# All of these should succeed, not die in vendor-handling code.
go run p.go &
go build &
go install &

wait

-- p.go --
package main

import _ `v`

func main () {}
-- v.go --

		t.Fatalf("Given sequence of bits is bad, and should not succeed.")
	}
}

// The following test should not panic.
func TestIssue5962(t *testing.T) {
	bits := []int{4, 0, 0, 6, 4, 3, 2, 3, 3, 4, 4, 5, 0, 0, 0, 0,
		5, 5, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 11}
	var h huffmanDecoder
	if h.init(bits) {
		t.Fatalf("Given sequence of bits is bad, and should not succeed.")
	}
}

// The following test should not panic.

cd x
cmp $devnull $WORK/empty.txt
go test -o=$devnull -c
! exists x.test$GOEXE
cmp $devnull $WORK/empty.txt

# Issue 12407: go build -o /dev/null should succeed.
cd ..
go build -o $devnull y
cmp $devnull $WORK/empty.txt

-- x/x_test.go --
package x_test
import (
    "testing"
)
func TestNUL(t *testing.T) {
}
-- y/y.go --
package y
func main() {}

	n, err := w.Write([]byte("abcd"))
	w.Close()
	if err != nil {
		t.Errorf("DeadlineWriter should succeed but failed with %s", err)
	}
	if n != 4 {
		t.Errorf("DeadlineWriter should succeed but should have only written 4 bytes, but returned %d instead", n)
	}
}

func TestCloseOnWriter(t *testing.T) {
	writer := WriteOnClose(io.Discard)
	if writer.HasWritten() {

//go:build dragonfly || freebsd || netbsd

package os

import (
	"runtime"
	"syscall"
)

// blockUntilWaitable attempts to block until a call to p.Wait will
// succeed immediately, and reports whether it has done so.
// It does not actually call p.Wait.
func (p *Process) blockUntilWaitable() (bool, error) {
	var errno syscall.Errno
	for {

	~map[string]string | ~[]struct{ key, value string }
}

type PathParams[T PathParamsConstraint] struct {
	t T
}

func (pp *PathParams[T]) IsNil() bool {
	return pp.t == nil // this must succeed

# 'go build' of source files should succeed if they do not import anything outside std.
go build -n -o ignore ./stdonly/stdonly.go

# 'go build' should succeed for standard-library packages.
go build -n fmt

# 'go build' should use the latest version of the Go language.
go build ./newgo/newgo.go

# Commands in an old module with no go line and no toolchain line,
# or with only a go line, should succeed.
# (They should not fail due to the go.mod not being tidy.)

# No go line, no toolchain line.
go list

# Old go line, no toolchain line.
go mod edit -go=1.16
go list

go mod edit -go=1.20
go list

# New go line, no toolchain line, using same toolchain.
env TESTGO_VERSION=1.21
go mod edit -go=1.21
go list

symlink $WORK/tmp/symdir1 -> $WORK/tmp/gopath/src/dir1
env GOPATH=$WORK/tmp/gopath
cd $WORK/tmp/symdir1
go list -f '{{.Root}}' .
stdout '^'$WORK/tmp/gopath'$'

# All of these should succeed, not die in internal-handling code.
go run p.go &
go build &
go install &

wait

-- p.go --
package main

import _ `dir1/internal/v`

func main() {}
-- v.go --

# 'go list -mod=vendor' should succeed even when go.mod contains redundant
# requirements. Verifies #47565.
go list -mod=vendor

-- go.mod --
module m

go 1.17

require example.com/m v0.0.0
require example.com/m v0.0.0

replace example.com/m v0.0.0 => ./m
-- m/go.mod --
module example.com/m

go 1.17
-- m/m.go --
package m
-- use.go --
package use

import _ "example.com/m"
-- vendor/example.com/m/m.go --